MVC5 应用程序中的计时请求

Question

I have an MVC 5 WebAPI application and try to estimate, very approximately, the timing of each request, to see what request how many time it took and eventually optimize the most expensive ones.

my code is the following

static public int time;
private DateTime start;

protected void Application_BeginRequest(Object sender, EventArgs e)
{
    start = DateTime.Now;
}

protected void Application_EndRequest(Object sender, EventArgs e)
{
    time = start.CompareTo(DateTime.Now);
    var request = ((System.Web.HttpApplication)sender).Request;
    System.Diagnostics.Debug.WriteLine($">> MyServices request {request.Path} {request.QueryString} took {TimeSpan.FromMilliseconds(time)}");            
}

However the output is mainly the same:

MyServices request /MyServices/ZoneBlock/GetZoneBlock contentTypeId=18&blockName=sliderhautauto_slide2 took -00:00:00.0010000

the "time" is the same (-00:00:00.0010000) for any request, that seem strange to me...

PS.
My application is built on .NET 4.5, so the tools like MiniProfiler (.NET 4.6.1 min) unfortunately will not work for my case...

Answer 1

Don't write that yourself, the time will already be in the log of the application (at least when standard logging settings are used). If you need it more accessible, I like to use miniprofiler.